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Finding the Fourth Proportional to 79,902.32, 119,866.41 and 29,986.29

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Solution

The fourth proportional to 79,902.32, 119,866.41 and 29,986.29 is: 44,984.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,902.32 : 119,866.41 = 29,986.29 : x
  2. Step 2: Convert to fraction form
    79,902.32/119,866.41 = 29,986.29/x
  3. Step 3: Cross multiply
    79,902.32x = 119,866.41 × 29,986.29
  4. Step 4: Simplify right side
    79,902.32x = 3,594,348,931.52
  5. Step 5: Solve for x
    x = 3,594,348,931.52/79,902.32
  6. Step 6: Final answer
    x = 44,984.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.